There is something wrong in a government where they who do the most have the least. There is something wrong when honesty wears a rag, and rascality a robe; when the loving, the tender, eat a crust while the infamous sit at banquets.

The instructions for the construction of the Ark are found in Exodus 25:10. The clothing that Belloq wears while acting as a High Priest during the ceremony at the end is found beginning in Exodus chapter 28.

Amy Irving and [?] Debra Winger were considered for the role of Marion.

Harrison Ford was cast less than three weeks before principal photography began.

Begins with a shot of a peak in the jungle which is reminiscent of the Paramount Pictures logo. This became a common concept for [Indiana Jones] movies.

An early draft of the script had Indy traveling to Shanghai to recover a piece of the Staff of Ra. During his escape from the museum where it was housed, he sheltered from machine gun fire behind a giant rolling gong. Also in the same script, Indy and Marion flee the chaos caused by the opening of the Ark in a wild mine-cart chase sequence. Both of these scenes were cut from the script, but ended up in Indiana Jones and the Temple of Doom.

Although Tom Selleck had to give up the role of Indiana Jones to film [Magnum, P.I.], the series didn't go into production until filming had already wrapped. Selleck was in fact in Hawaii waiting for the series to start as the final scenes to be filmed (the opening sequence) were being shot in Hawaii.

Originally intended as a small low-budget adventure, production costs tripled to $22 million. It went on to become 1981's biggest grossing film.

The out-of-control airplane actually ran over Harrison Ford's knee, tearing his ligaments. Rather than submit to Tunisian health care, Ford had his knee wrapped in ice and carried on.